docs: def get_xpath_frequencydistribution(paths):
      """ Build and return a frequency distribution over xpath occurrences."""
      # "html/body/div/div/text" -> [ "html", "body", "div", "div", "text" ]
      splitpaths = [p.rsplit('/', 1) for p in paths]
  
      # get list of "parentpaths" by right-stripping off the last xpath-node,
      # effectively getting the parent path
      # thanks to eugene-eeo for optimization
      parentpaths = [p[0] for p in splitpaths]
  
      # build frequency distribution
      parentpaths_counter = Counter(parentpaths)
      return parentpaths_counter.most_common()